57701 leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 58% of adults in 57701 typically vote, near the U.S. average of about 62%. Among adults in 57701, ~24% vote Democratic, ~34% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 57701 compares
Among zip codes within 15 miles, 57701 is the least Republican-leaning.
57701 runs about 13 points more Democratic than South Dakota as a whole.
Politics vary noticeably by block within 57701. The west side runs the most Democratic (D+3) and the northeast side runs the most Republican (R+26), a spread of about 29 points.
Why 57701 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 57701, not a ranked or complete list of what matters most.
57701 votes Republican even though it is densely developed (about 77%, far above the South Dakota average of 9%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Homeownership and voter turnout
Places with renter-heavy households tend to turn out at a lower rate; 57701, SD sits in the bottom quarter nationally on this measure.
Why turnout in 57701 looks the way it does
Renters vote less often than owners. About 39% of households in 57701 rent, about 15 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
Sources and methodology
Precinct-level voting records used to fit the model come from South Dakota Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.